Stepping lifting driving device

Abstract

The utility model discloses a stepping lifting driving device which comprises a lower installation seat, an upper installation seat, a coupler, a stepping motor, a lower lead screw supporting seat, an upper lead screw supporting seat, a lead screw, a nut and a lifting material supporting seat, wherein the stepping motor and the lower lead screw supporting seat are arranged on the lower installation seat, the upper lead screw supporting seat is arranged on the upper installation seat, the nut is in threaded connection with the lead screw, and the lifting material supporting seat is fixedly arranged on the nut. A rotating shaft of the stepping motor is connected with the lead screw through a coupler. The guide mechanism comprises a connecting strip, a first ball bearing and a second ball bearing, the two ends of the connecting strip are fixedly connected with the upper mounting seat and the lower mounting seat respectively, and the first ball bearing and the second ball bearing are arranged on the side portion of the lifting material supporting seat and are in rolling connection with the two opposite sides of the connecting strip respectively. The mounting base has the advantages that the upper mounting base and the lower mounting base can be effectively positioned by arranging the connecting strips, and the precision and convenience of the upper mounting base and the lower mounting base are improved. Meanwhile, the two ends of the first ball bearing and the two ends of the second ball bearing are in rolling connection with the connecting strips correspondingly, and the lifting resistance of the lifting material supporting base can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of lifting device, concretely is a kind of step-up lifting drive device. BACKGROUND

[0002] Lifting drive device is often used to lift products.Step motor drive mechanism commonly used structure is through step motor drive screw nut pair work, utilize screw rod rotation to drive nut lifting, utilize nut lifting to lift product.But, the existing step-up drive device commonly utilizes guide rail as guide mechanism, but, guide rail is only suitable for installation on the side of rack, when rack does not satisfy guide rail installation, it needs to redesign a guide mechanism.And commonly used guide rail mechanism is not connected with the mounting seat of screw rod, is not convenient for the positioning of screw rod.

[0003] Therefore, it is necessary to provide a step-up lifting drive device. SUMMARY

[0004] The step-up lifting drive device effectively solves the problems of limited installation of guide rail mechanism of existing step-up drive device and difficulty in mounting and positioning of guide rail for each seat body.

[0005] The utility model employs the technical scheme that:

[0006] Step-up lifting drive device, including lower mounting seat, upper mounting seat, shaft coupling, step motor and lower screw rod support seat being set on lower mounting seat, upper screw rod support seat being set on upper mounting seat, screw rod being fixed on upper screw rod support column and lower screw rod support seat respectively on both ends, nut being connected with screw rod thread, and lifting material support being fixedly arranged on nut, the rotating shaft of step motor is connected with screw rod through shaft coupling.It also includes guide mechanism, the guide mechanism includes the connecting strip being fixedly connected with upper mounting seat and lower mounting seat respectively on both ends, one ball bearing and two ball bearings being arranged on the side of lifting material support, one ball bearing and two ball bearings are respectively connected with the rolling connection of opposite sides of connecting strip.

[0007] Further, the lifting material support includes one C-type clasp, two C-type clamps, a rectangular block fixedly connected with the nut, a supporting frame arranged on the rectangular block, a first shaft and a second shaft arranged on the side of the rectangular block, the inner ring of the first ball bearing is connected with the first shaft, the inner ring of the second ball bearing is connected with the second shaft, the one C-type clasp is arranged at the end of the first shaft away from the rectangular block to prevent the first ball bearing from being separated from the first shaft, and the two C-type clamps are arranged at the end of the second shaft away from the rectangular block to prevent the second ball bearing from being separated from the second shaft.

[0008] Further, the supporting frame includes two support columns fixedly connected with the rectangular block and a supporting plate bolted with the upper end of the support column.

[0009] Furthermore, the No. 1 shaft and the No. 2 shaft have the same structure, the No. 1 shaft includes a shaft body fixedly connected to the rectangular block and a cam coaxially arranged on the shaft body, an annular groove is coaxially arranged on the shaft body, the No. 1 C-type retaining ring is fixed to the shaft body through the annular groove, the rectangular block is provided with a mounting hole for fixing the shaft body, and the cam is against the side of the rectangular block.

[0010] Furthermore, a photoelectric switch No. 1 is provided on the upper mounting seat, a photoelectric switch No. 2 corresponding to the photoelectric switch No. 1 is provided on the lower mounting seat, and a sensor sheet is provided on the lifting support seat, the upper end of the sensor sheet can be sensed by the photoelectric switch No. 1, and the lower end of the sensor sheet can be sensed by the photoelectric switch No. 2.

[0011] The beneficial effects of the utility model are as follows: by providing a connecting strip, the upper and lower mounting seats can be effectively positioned, improving the accuracy and convenience of the upper and lower mounting seats. At the same time, by rolling the ends of the No. 1 and No. 2 ball bearings to the connecting strip respectively, the resistance of the lifting support seat can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is an overall schematic diagram of the stepping lifting drive device provided in an embodiment of the present application.

[0013] Figure 2 This is an exploded view of the No. 1 ball bearing, No. 2 ball bearing, and lifting support of the step-by-step lifting drive device provided in an embodiment of the present application.

[0014] Figure 3 A schematic diagram of the first axis of the stepping lifting drive device provided in an embodiment of the present application.

[0015] The following are marked in the figure: 1. Lower mounting seat; 2. Upper mounting seat; 3. Coupling; 4. Stepper motor; 5. Lower screw support seat; 6. Upper screw support seat; 7. Screw; 8. Lifting support seat; 9. Guide mechanism; 91. Connecting strip; 92. Ball bearing No. 1; 93. Ball bearing No. 2; 81. C-type retaining spring No. 1; 82. C-type retaining spring No. 2; 83. Rectangular block; 84. Support frame; 85. Shaft No. 1; 86. Shaft No. 2; 841. Support column; 842. Support plate; 851. Shaft body; 852. Cam; 801. Annular groove; 10. Photoelectric switch No. 1; 11. Photoelectric switch No. 2; 12. Sensor plate; DETAILED DESCRIPTION

[0016] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0017] like Figure 1 andFigure 2 As shown, the step-by-step lifting drive device provided in the embodiment of the present application includes a lower mounting seat 1, an upper mounting seat 2, a coupling 3, a stepper motor 4 and a lower screw rod 7 support seat 5 arranged on the lower mounting seat 1, an upper screw rod 7 support seat 6 arranged on the upper mounting seat 2, a screw rod 7 whose two ends are respectively fixed on the upper screw rod 7 support seat 6 and the lower screw rod 7 support seat 5, a nut threadedly connected to the screw rod 7, and a lifting support seat 8 fixedly arranged on the nut, and the rotating shaft of the stepper motor 4 is connected to the screw rod 7 through the coupling 3. It also includes a guide mechanism 9, which includes a connecting strip 91 whose two ends are respectively fixed to the upper mounting seat 2 and the lower mounting seat 1, a number one ball bearing 92 and a number two ball bearing 93 arranged on the side of the lifting support seat 8, and the number one ball bearing 92 and the number two ball bearing 93 are respectively connected in a rolling manner to the opposite sides of the connecting strip 91.

[0018] It should be noted that the upper screw rod 7 support seat 6 and the lower screw rod 7 support seat 5 of the present application have the same structure. There are deep groove ball bearings in the upper screw rod 7 support seat 6 and the lower screw rod 7 support seat 5. Both ends of the screw rod 7 are connected to the upper screw rod 7 support seat 6 and the lower screw rod 7 support seat 5 respectively through deep groove ball bearings.

[0019] During actual use, the stepper motor 4 drives the coupling 3 to rotate, causing the screw rod 7 to rotate. Since the screw rod 7 and the nut are threadedly connected to form a screw rod 7 nut pair, the nut rises and falls with the rotation of the screw rod 7, driving the lifting support 8 to rise and fall synchronously. In the process of lifting the lifting support 8, the No. 1 ball bearing 92 and the No. 2 ball bearing 93 rise and fall synchronously, and in the lifting process, the two ends of the No. 1 ball bearing 92 and the No. 2 ball bearing 93 are respectively connected to the two sides of the connecting bar 91 in a rolling connection.

[0020] In the above design, the provision of the connecting bar 91 allows for effective positioning of the upper mounting seat 2 and the lower mounting seat 1, improving the precision and convenience of the upper mounting seat 2 and the lower mounting seat 1. Furthermore, the rolling connection of the first and second ball bearings 92 and 93 at their ends to the connecting bar 91 can reduce the resistance to the lifting of the lifting support 8.

[0021] Specifically: Figure 2 As shown, the lifting support 8 includes a No. 1 C-type retaining spring 81, a No. 2 C-type retaining spring 82, a rectangular block 83 fixedly connected to a nut, a support frame 84 arranged on the rectangular block 83, and a No. 1 shaft 85 and a No. 2 shaft 86 arranged on the side of the rectangular block 83. The inner ring of the No. 1 ball bearing 92 is connected to the No. 1 shaft 85, and the inner ring of the No. 2 ball bearing 93 is connected to the No. 2 shaft 86. The No. 1 C-type retaining spring 81 is arranged at the end of the No. 1 shaft 85 away from the rectangular block 83 to prevent the No. 1 ball bearing 92 from detaching from the No. 1 shaft 85, and the No. 2 C-type retaining spring 82 is arranged at the end of the No. 2 shaft 86 away from the rectangular block 83 to prevent the No. 2 ball bearing 93 from detaching from the No. 2 shaft 86.

[0022] In actual use, the rectangular block 83 is lifted along with the nut, and the rectangular block 83 drives the carrier frame 84, the first shaft 85, the second shaft 86, the first C-shaped clamp spring 81 and the second C-shaped clamp spring 82 to be lifted synchronously, the first ball bearing 92 is limited by the first C-shaped clamp spring 81, and the second ball bearing 93 is limited by the second C-shaped clamp spring 82.

[0023] In the above design, the structure design and specific implementation of the lifting product carrier 8 can effectively fix the first ball bearing 92 and the second ball bearing 93.

[0024] Specifically, as shown in Figure 2 The carrier frame 84 includes two support columns 841 fixedly connected with the rectangular block 83 and a carrier plate 842 bolted to the upper ends of the support columns 841.

[0025] In actual use, the carrier plate 842 is used to carry products.

[0026] In the above design, the structure design and specific implementation of the carrier frame 84 can effectively realize the carrying of products.

[0027] Specifically, as shown in Figure 2 and Figure 3 The first shaft 85 and the second shaft 86 are the same in structure, the first shaft 85 includes a shaft body 851 fixedly connected with the rectangular block 83 and a cam 852 coaxially arranged on the shaft body 851, an annular groove 801 is coaxially arranged on the shaft body 851, the first C-shaped clamp spring 81 is fixed on the shaft body 851 through the annular groove 801, the rectangular block 83 is provided with a mounting hole for fixing the shaft body 851, and the cam 852 abuts against the side surface of the rectangular block 83.

[0028] In actual use, the cam 852 can be fixed with the rectangular block 83 by using a bolt.

[0029] In the above design, the structure design and specific implementation of the first shaft 85 can effectively realize the fixation of the first ball bearing 92.

[0030] Specifically, as shown in Figure 1 The upper mounting seat 2 is provided with a first photoelectric switch 10, the lower mounting seat 1 is provided with a second photoelectric switch 11 corresponding to the first photoelectric switch 10, the lifting product carrier 8 is provided with a sensing sheet 12, the upper end of the sensing sheet 12 can be sensed by the first photoelectric switch 10, and the lower end of the sensing sheet 12 can be sensed by the second photoelectric switch 11.

[0031] In actual use, when the lifting material supporting seat 8 rises, the inductive sheet 12 is synchronously lifted, so that the first photoelectric switch 10 senses the inductive sheet 12, and the PLC system of the device sends a stop driving command to the stepping motor 4; when the lifting material supporting seat 8 descends, the inductive sheet 12 is synchronously descended, so that the second photoelectric switch 11 senses the inductive sheet 12, and the PLC system of the device sends a stop driving command to the stepping motor 4.

[0032] In the above design, the driving precision of the stepping motor 4 can be effectively improved.

[0033] It should be understood that the above description is only a specific embodiment of the present application and is not used to limit the present application. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A stepping lifting drive device, comprising a lower mounting seat (1), an upper mounting seat (2), a coupling (3), a stepping motor (4) and a lower screw support seat (5) arranged on the lower mounting seat (1), an upper screw support seat (6) arranged on the upper mounting seat (2), a screw (7) with its two ends respectively fixed on the upper screw support seat (6) and the lower screw support seat (5), a nut threadedly connected to the screw (7), and a lifting support seat (8) fixedly arranged on the nut, wherein the rotating shaft of the stepping motor (4) is connected to the screw (7) through the coupling (3), and is characterized in that: The guide mechanism (9) further comprises a connecting strip (91) having two ends fixedly connected to the upper mounting seat (2) and the lower mounting seat (1), a first ball bearing (92) and a second ball bearing (93) arranged on the side of the lifting support seat (8), and the first ball bearing (92) and the second ball bearing (93) are respectively connected in a rolling manner to the two opposite sides of the connecting strip (91).

2. The stepping lifting drive device according to claim 1, characterized in that: The lifting support seat (8) includes a No. 1 C-type retaining spring (81), a No. 2 C-type retaining spring (82), a rectangular block (83) fixedly connected to a nut, a supporting frame (84) arranged on the rectangular block (83), a No. 1 shaft (85) and a No. 2 shaft (86) arranged on the side of the rectangular block (83), the inner ring of the No. 1 ball bearing (92) is connected to the No. 1 shaft (85), and the inner ring of the No. 2 ball bearing (93) is connected to the No. 2 shaft (86), the No. 1 C-type retaining spring (81) is arranged at one end of the No. 1 shaft (85) away from the rectangular block (83) to prevent the No. 1 ball bearing (92) from detaching from the No. 1 shaft (85), and the No. 2 C-type retaining spring (82) is arranged at one end of the No. 2 shaft (86) away from the rectangular block (83) to prevent the No. 2 ball bearing (93) from detaching from the No. 2 shaft (86).

3. The stepping lifting drive device according to claim 2, characterized in that: The supporting frame (84) comprises two supporting columns (841) fixedly connected to the rectangular block (83) and a supporting plate (842) bolted to the upper ends of the supporting columns (841).

4. The stepping lifting drive device according to claim 3, characterized in that: The first shaft (85) and the second shaft (86) have the same structure. The first shaft (85) includes a shaft body (851) fixedly connected to the rectangular block (83) and a cam (852) coaxially arranged on the shaft body (851). The shaft body (851) is coaxially provided with an annular groove (801). The first C-shaped retaining ring (81) is fixed to the shaft body (851) through the annular groove (801). The rectangular block (83) is provided with a mounting hole for fixing the shaft body (851). The cam (852) abuts against the side surface of the rectangular block (83).

5. The stepping lifting drive device according to claim 1, characterized in that: The upper mounting seat (2) is provided with a No. 1 photoelectric switch (10), the lower mounting seat (1) is provided with a No. 2 photoelectric switch (11) corresponding to the No. 1 photoelectric switch (10), and the lifting support seat (8) is provided with a sensing sheet (12), the upper end of the sensing sheet (12) can be sensed by the No. 1 photoelectric switch (10), and the lower end of the sensing sheet (12) can be sensed by the No. 2 photoelectric switch (11).

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